
The Aqara T1 valve controller fits onto the main stopcock you already have and closes it on its own when one of the three leak sensors detects water under the washing machine, the sink or the boiler. The M100 hub runs the automation in the house, even without internet, and sends the notification to your phone. All in the Aqara Home app.
What it does
- The three leak sensors on the floor pick up water under the washing machine, the sink and the boiler, or in the bathroom.
- When a sensor detects water, the M100 hub drives the T1 valve controller, which closes the main stopcock.
- The automation runs on the hub in the house: the valve closes even with no internet.
- You get a notification on your phone naming the room where the leak is.
- From the app you can also open and close the stopcock by hand, for example when you go away for a few days.
- The controller runs on AA cells, so no socket is needed near the tap.

How it is installed
What's in the kit

| Qty | Item | Unit price | Subtotal |
|---|---|---|---|
| 1 | Aqara M100 hub Matter/ThreadCoordinator / gateway | 35,99 € | 35,99 € |
| 1 | Aqara T1 water valve controller (AA)Water valve | 74,99 € | 74,99 € |
| 1 | Aqara water leak sensor, 3 piecesWater sensor | 59,99 € | 59,99 € |
| 1 | 5V 2A USB power supplies, 3 piecesAccessory: power · needed because the device comes without a power supply | 10,99 € | 10,99 € |
| Kit total | 181,96 € |
Prices taken from Amazon.it on 22/09/2026: they can change, and the price Amazon shows at the time of purchase is the one that applies.
Add the whole kit to your Amazon basket4 items, 4 pieces · optional extras are added from the individual linksDelivery, returns and warranty: Amazon shows these when you buy.
Before you order
Do you need a hub?
Yes: the valve controller and the leak sensors talk to the Aqara M100 hub, included in the kit, which runs the shut-off automation and links them to the Aqara Home app. You can add more Aqara sensors to the same hub.
Will it fit my tap?
The T1 controller fits quarter-turn lever ball valves, within the sizes stated by the manufacturer. It does not fit wheel-handle taps. If you are unsure, send us a photo of your main stopcock through our contact page.
Do you need an electrician or a plumber?
No. The controller fits onto the existing tap with no pipe cutting and runs on batteries, the sensors sit on the ground, the hub goes into a USB power supply. The level is advanced DIY because of the precise fit on the valve.
What happens if there is no internet?
The shut-off automation runs on the M100 hub in the house: if a sensor detects water, the tap closes even without internet. Without a connection you do not get the notification on your phone, though; it arrives once the line is back.
Are batteries included?
The valve controller runs on AA cells, as the product name says, and the leak sensors have their own battery. Whether they are already in the box is stated on each product's Amazon listing. The charge level is checked in the Aqara Home app.
Does it work with Alexa, Google and Apple?
The M100 hub supports Matter: compatible Aqara devices can appear in Apple Home, Alexa and Google Home, as the manufacturer states. The shut-off automation is better built in the Aqara Home app, because it runs locally on the hub.
Can I add sensors?
Yes, more Aqara leak sensors can be added to the hub and to the same automation: under the dishwasher, by the water heater or in a second bathroom. Get in touch if the house is on several floors, so we can check the coverage.
What if a product is out of stock on Amazon?
Get in touch through the contact page quoting the kit code and the product you cannot find: we will point you to an alternative that works with the M100 hub and the Aqara Home app, so you keep a combination we have checked and you do not have to hunt for an equivalent model yourself.
Why buy on Amazon?
Purchase, payment, returns and warranty are handled by Amazon, as with any other order on the site. The kit is our own work and we checked that the parts work together; delivery times, returns and warranty are shown on Amazon when you buy.
Notes
Not included
- The home router and internet connection
- A ball-type main stopcock, if the existing one is not compatible
- AA batteries for the controller, if not supplied in the box
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